A Second Generation Automated Powder Diffractometer Control System

Robert L. Snyder, C. R. Hubbard, N. C. Panagiotopoulos

Advances in X-ray Analysis · 1981 · 20 citations · 6 references

Concepts

TL;DR

The AUTO system is a real‑time x‑ray powder diffractometer control system that incorporates several advances in data collection and analysis. The system optimizes counting procedures for statistical error or time, uses run files to simplify quantitative analysis, applies external calibration curves to correct peak positions, and employs a generalized data file structure to document instrumental variables and sample parameters.

Abstract

Abstract The real-time x-ray powder diffractometer control system AUTO incorporates several advances in data collection and analysis. Counting procedures for selected area data collection are optimized to achieve either a preselected statistical error in minimum time or a minimum error in fixed total time. Run files are employed to greatly simplify quantitative analysis procedures and for controlling repetitive runs. External calibration curves for 20 are used to eliminate all but sample dependent aberrations to peak positions. A generalized data file structure is used to document the instrumental variables and sample parameters.

References

6